In UAF, Eatle resembles a robotic-shark-beetle creature. He is mainly black with blue jaws, waist and arm bands. Eatle has a beetle horn/shark fin on his head. He has oval-shaped eyes.
In Omniverse, Eatle's upper lip is completely covered by his lower lip, which now has different teeth, his tongue is now blue, and his horn now forks at the top, causing it to resemble that of a Japanese rhinoceros beetle. He now has two toes on his feet, and spikes on his arms and back of his legs. His blue has switched to gray, and he has green clothing all over his torso. He has a dark green, almost black shell on his back and armor of the same color.
In John Smith 10, he has his UAF appearance until Omniverse, where he gets his Omniverse appearance.
Eatle is one of Ryder's original 10. Unlike the other aliens, he is too heavy to ride a motorcycle. This changes once he gets the Tenn-Speed motorcycle, which can withstand his weight.